/*
 *  Copyright 2012 Utkin Dmitry
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

/*
 *  This file is part of the WSF Staff project.
 *  Please, visit http://code.google.com/p/staff for more information.
 */


#ifndef _STAFF_COMMON_LOGOPERATORS_H_
#define _STAFF_COMMON_LOGOPERATORS_H_

#include "Abstract.h"
#include "Nillable.h"
#include "Optional.h"
#include <staff/utils/LogStream.h>

namespace staff
{

  template <typename Type>
  inline LogStream& operator<<(LogStream& rStream, const Abstract<Type>& rType)
  {
    if (!rType)
    {
      return rStream << "(NULL)";
    }
    else
    {
      return rStream << *rType;
    }
  }

  template <typename Type>
  inline LogStream& operator<<(LogStream& rStream, const Nillable<Type>& rType)
  {
    if (rType.IsNull())
    {
      return rStream << "(NULL)";
    }
    else
    {
      return rStream << *rType;
    }
  }

  template <typename Type>
  inline LogStream& operator<<(LogStream& rStream, const Optional<Type>& rType)
  {
    if (rType.IsNull())
    {
      return rStream << "(NULL)";
    }
    else
    {
      return rStream << *rType;
    }
  }

}

#endif // _STAFF_COMMON_LOGOPERATORS_H_
